Laser Physics

, Volume 16, Issue 10, pp 1439–1443 | Cite as

Generation of polarization-entangled photon pairs by a single crystal interferometric source pumped by femtosecond laser pulses

  • M. Barbieri
  • C. Cinelli
  • F. De Martini
  • P. Mataloni
Article

Abstract

Photon pairs highly entangled in polarization have been generated under femtosecond laser pulse excitation by a type-I crystal source operating in a single-arm interferometric scheme. The relevant effects of temporal walkoff existing in these conditions between the ordinary and extraordinary photons were experimentally investigated. By introducing a suitable temporal compensation between the two orthogonal polarization components, highly entangled pulsed states were obtained.

PACS numbers

03.67.-a 03.67.Mn 03.67.Pp 

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Copyright information

© MAIK “Nauka/Interperiodica” 2006

Authors and Affiliations

  • M. Barbieri
    • 1
  • C. Cinelli
    • 1
  • F. De Martini
    • 1
  • P. Mataloni
    • 1
  1. 1.Dipartimento di FisicaUniversità di Roma La Sapienza and Consorzio Interuniversitario per le Scienze Fisiche della MateriaRomaItaly

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